On Monday, Daniel Day, 35, of Argyle pleaded guilty to illegal possession of homemade explosive devices, other firearms, and ammunition. WTEN reports officials said Day, admitted to owning components to create three improvised explosive devices at his home on August 5, 2021. Day also admitted to owning non-registered firearms as required by federal law, including a submachine gun, a sawed-off shotgun, and a 3D-printed pistol without a serial number.